Home / 3,137.92-4,683.96-2,909.50

Finding the Fourth Proportional to 3,137.92, 4,683.96 and 2,909.50

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Solution

The fourth proportional to 3,137.92, 4,683.96 and 2,909.50 is: 4,343.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.92 : 4,683.96 = 2,909.50 : x
  2. Step 2: Convert to fraction form
    3,137.92/4,683.96 = 2,909.50/x
  3. Step 3: Cross multiply
    3,137.92x = 4,683.96 × 2,909.50
  4. Step 4: Simplify right side
    3,137.92x = 13,627,981.62
  5. Step 5: Solve for x
    x = 13,627,981.62/3,137.92
  6. Step 6: Final answer
    x = 4,343.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.